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root42 /
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2024-07-19 22:01:32

root42 on Nostr: I made two videos about how to use more memory in MS DOS programs. The first is about ...

I made two videos about how to use more memory in MS DOS programs. The first is about EMS, which works even on the original IBM PC from 1981 using an expansion card:
https://youtu.be/QS060vSzWLY

The second is about XMS, which can be used on 286 machines and higher:
https://youtu.be/EfszIBo7W2g

Yes, memory handling on PCs in real mode was always a mess. I guess it goes all back to the segmented memory model. Why segmentation though? Maybe to be a bit compatible to the 8080...? Intel is weird.
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